This gimbal mirror mount provides ±2.5 degrees of precise
angular adjustment about two orthogonal axes which intersect at the center of the front surface of the optic. The length of the optical path, therefore, remains constant during adjustment. Optics from 12.5 to 12.7 mm (0.5 inch) are held in this mount with a retaining ring. Mirrors up to 6 mm in thickness and plate beamsplitters up to 1 mm in thickness can be mounted.